<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="js/vue.js"></script>
</head>

<body>
    <div id="app">
        <!-- 循环数组 -->
        <ul>
            <li v-for="(value, key, idx) in arr">
                {{idx}} ：{{key}} + {{value}}
            </li>
        </ul>
    </div>
    <script>
        var vm = new Vue({
            el: "#app",
            data: {
                arr: [12311, 4565, 8796748, 45645673413, 46543132, 1231213, 47684, 87897, 89]
            }
        })
    </script>
</body>

</html>